Suggestions for Some Good Non-mainstream Anime

Just like what the title said, I'm looking for some good but non-mainstream anime.

My favourite anime are: Durarara!!, Gintama, Danshi Koukousei no Nichijou (Daily Lives of Highschool Boys), Another, Mekakucity Actors, and Shingeki no Kyojin (Attack on Titan).

I've watched Higurashi no Naku Koro ni and Seitokai Yakuindomo, so don't suggest it anymore.

I don't really like anime which focused on romance. I don't really like anime which full of feels and less of comedy either.

I can stand ecchi, but don't suggest the heavy one.

Glad to see MCA on the list (I bet you're a Kagerou Project fan, huehue *snickers*)

Here are some of my personal faves

Another
Code Geass
Hataraku Maou-sama! (this one's funny)
Hyouka
Kamisama no Inai Nichiyoubi
Noragami
Steins;Gate
Servant x Service
K
Kore wa Zombie Desu ka? (The ecchi is not as heavy as HS DXD and it's pretty enjoyable and funny)
Psycho-Pass
Tasogare Otome x Amnesia

• Puella Magi Madoka Magica
• Kami-Chu
• Kino no Tabi
• Tokyo God Fathers (Movie)
• Paranoia Agent